Address nit

Author: christiangnrd

docs/src/advanced.md

@@ -118,7 +118,7 @@ const init_code = quote
     #  but code from `init_worker_code` that will be directly
     #  called in a testset must be explicitly included in the
     #  module namespace.
-    using Main: complex_common_test_helper
+    import ..complex_common_test_helper
 end
 
 cd(test_dir) do # hide

test/runtests.jl

@@ -81,7 +81,7 @@ end
     end
     init_code = quote
         using Test
-        using Main: should_be_defined, @should_also_be_defined
+       import ..should_be_defined, ..@should_also_be_defined
     end
 
     testsuite = Dict(